fix some more PHP7.2 warnings
fix some more PHP7.2 warnings

dawnbreak/hubzilla,dawnbreak/hubzilla,anaqreon/hubzilla,mrjive/hubzilla,redmatrix/hubzilla,sasiflo/hubzilla,redmatrix/hubzilla,mrjive/hubzilla,anaqreon/hubzilla,anaqreon/hubzilla,mrjive/hubzilla,sasiflo/hubzilla,sasiflo/hubzilla,redmatrix/hubzilla,anaqreon/hubzilla,redmatrix/hubzilla,sasiflo/hubzilla,mrjive/hubzilla,dawnbreak/hubzilla,dawnbreak/hubzilla,sasiflo/hubzilla,anaqreon/hubzilla,redmatrix/hubzilla,dawnbreak/hubzilla,redmatrix/hubzilla,mrjive/hubzilla,dawnbreak/hubzilla,anaqreon/hubzilla,sasiflo/hubzilla,mrjive/hubzilla